Lubricator.



machine to w described,

Arions changes the scope of the, claim,

WILLIAM F. BROEKER, OF IBEARDSTOWN, ILLINOIS.

LUBRICATOR.

A Specification of Letters Patent. Application filed June s, 1910.`

Patented Aug. e, ieri'. Serial No'. 565,898.'

To all 'whom t may concern:

Be it known that I, WILLIAM F. BROEKER, a citizen of the United States, residing at Beardstown, in the county of Cass and State of Illinois, have invented a new and useful Lubricator; and I do hereby vdeclare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improvement in lubricators, and has for'its principal object to provide a novel means for preventing the loss of plugs for lubricator cups, such as are commonly employed in connection with driving rods of locomotives, and with` other machinery.

Another principal object of the invention 's to provide a locking means for plugs of the class described, which will permit of the plug being easily adjusted or removed without any delay or inconvenience.

A still further object of the invention is to provide a closure for the lubricator, whereby the lubricant will be prevented from escapin due to the vibrations of the ich the lubricator is attached.

With these and other yobjects in view, the invention 'consists in the construction .and novel combination of parts hereinafter fully illustrated in the accompanying drawing, and pointed out in the claim hereto appended; it being understood that vain the form, proportion, size and minor details of construction, within may be resorted to the spirit or sacriwithout departing from cing tion.

In the drawing Figure l is a side elevation of a grease cup, showing my improvementassociated therewith. Fig. 2 is a vertical sectional view through the same, parts thereof being shown the same. erence numerals designate corre- -parts lin all the iigures of the wrench or other suitable tool, by'means vof which the said cup can be secured in a bearing or lubricating box. The head 4 of the anyof the advantages of the invenin elevation. Fig, 3 isa sectional view of the closure, and Fig. 4-

cup is provided on its upper face with oppositely disposed and preferably concaved depressions 5. Arranged to engage the inthrough a corresponding opening in the larger end of the stem and forms a stop for a washer 13.

The invention further comprises a closure v7, which is provided with an `angular opening 10, adapted to receive the stem'll. This closure is preferablyformed of Hat metal and normally. rests above the piston upon thetop. face ofthe head lof the cup. -This closure is provided with an up-wardly'ex-` tending peripheral liange' 8 and the said closure has -a diameter substantially to the diameter of the cup. The closure is furthermore provided with oppositely disposed dependin lugs 6, which'jare formed by'depressing tie flange 8 by any. suitable tool. These lugs areA adapted to be seated within the depressions 5 ofthe head t to prevent any closure.

Interpo'sedbetween the washer 13 and the closure 8 is a coiled spring 9 of conical construction, the upper or smaller end thereof bearingagainst the washer, and the lower or largerend bearing uponthe closure.

-From the foregoing, it will be seen that, by reason of the fact that the lower end of the coiled spring is larger, greater pressure Yis exerted upon the washer and thereby any lubricant is prevented from escaping.

)Vhen it is desired to lower the piston head, the stem 1'1 is turned and, as its operation takes place, the tension of the coiled spring is increased. Therefore it will be observed that the farther the piston is inserted in the cup, the greater pressure will be eXertedupon the closure. What I'claim is ln combination with a grease cup having its upper face provided with oppositely arranged depressions, of a piston mounted therein for vertical adjustment and including a stem rectangular in cross section extending upwardly from the piston, a closure tted down over the stem in engagement with the upper surface of the cup land provided with a peripheral iiange and including oppositely arranged lugs pressed out of the ange to engage the depressions of the cup, a pin extending transversely of the teriorthreads 3 of the cup is a piston head having an `upwardly extending angular stem 11. A transverse pin 14. is inserted rota-ry movement of the said stem adjaeent its the stem below the pin, and a spring nter posed between the closure and the Washer to hold the lugs and depressions in coperation thereby preventing rotary movement of the closure7 the spring having its lower portion arranged Within the peripheral flange to prevent displacement of the spring.

upper end, a Washer on l' ln testimony whereof I have sgnefl my name to this speocaton in the presence of lJ tvvo .subscribing Witnesses.

CHAs. H. GERSMEYER, JOHN H. MANKEN. 

